Driving mechanism for twister tube type of spinning frames



May 2, 1950 J. A. KOOISTRA DRIVING MECHANISM FOR TWISTER TUBE TYPE OF SPINNING FRAMES Filed April 26, 1949 2 Sheets-Sheet 1 IN V EN TOR.

FU EM/ldSMMM/MW WW4 M y 2, 1950 J. A. KOOISTRA 2,506,155

DRIVING MECHANISM FOR TWISTER TUBE TYPE OF SPINNING FRAMES Filed April .26, 1949 2 Sheets-Sheet 2 IN VEN TOR.

Patented May 2, 1950 DRIVING MECHANISM'FOR TWISTER TUBE TYPE OF SPINNING FRAMES John A. Kooistra, orth- Andover, Mass., assignor to Davis &' Furber Machine Company, North Andover, Mass., a corporation of Massachusetts Application April26, 1949, Serial No. 89,631

2 Claims. (01. 57-93) This invention relates to the driving mecha- I nism for the spindles and the twister tubes in a twister tube type of spinning frame such as extensively employed for spinning wool and other long fibre.

The object of the invention is to provide a simple and efficient mechanism by means of which the direction of rotation of the spindles may be reversed to change from that required to give a right hand twist to the yarn to that required to give a'left hand twist, or vice versa, without changing or affecting the direction of rotation of the twister tubes and by means of which the speedof rotation of the spindles and the speed of rotation of the twister tubes may each be controlled or adjusted independently of the other.

The invention therefore enables, for example, not only the direction of rotation of the spindles readily to be changed whenever desired without changing the direction of rotation of the twister tubes but also the speed of rotation of the spindles to be changed as desired without affecting the speed of rotation of the twister tubes.

The twister tube type of spinning frame is well known and familiar to those skilled in the art and hence no illustration or description is necessary beyond that required for a disclosure of a preferred form of the driving mechanism to which this invention relates. Examples of one suitable type of twister tube spinning frames are disclosed in Patents Nos. 1,820,310, issued August 25, 1931, and 1,973,348, issued September 11, 1934.

In the construction illustrated:

Fig. 1 is a top plan view illustrating an ordinary arrangement of belts for driving the twister tubes;

Fig. 2 is an end elevation of the spinning frame with the end portion of the main frame partially broken away and showing the mechanism arranged for rotating the spindles in one direction; and,

Fig. 3 is a view similar to Fig. 2 showing the same mechanism for rotating the spindles in the opposite direction.

The main elements of the spinning frame are supported in a main frame comprising end sections I. The twister tubes 2 are suitably mounted on, and extend in two rows, one at each side of, the upper portion of the main frame, and each twister tube is provided with a pulley 3. Rotation is imparted to the two rows of twister tubes by belts 4 engaging the pulleys 3 and driven from a rotating cylinder 5 extending between the end frames, as shown in Fig. 1.

The spinning mechanism is arranged with the spinning elements also extending in two rows, one at each side of the frame and beneath the twister tubes. In the form illustrated, which is of the ring type, the rings 6 are mounted on fixed .ring frames 1 while the spindles 8 are mounted in a spindle frame 9 given theusual vertical reciprocating movement to effect the winding of the yarn on the bobbins. Each spindle is provided with a usual pulley or whirl l0 and the spindles are driven by belts l I from a cylinder l2. Usually the belts for driving the spindles are arranged so that each belt drives a plurality of spindles at both sides of the frame as shown, for example, in the said Patent No. 1,820,310.

Each yarn l3 being spun leads down through the twister tubes where the required false twist is imparted and from thence down to the spinning elements.

The spinning frame is operated from any suitable source of power and for that purpose an electric motor I4 is preferably employed and located adjacent the end frame I. Either by such a motor or by any suitable means a main shaft I5 is driven and constitutes the main driving element for both the twister tubes and the spindles. As illustrated this shaft is located above the motor l4 and driven by a belt I6 extending around a pulley I! on the motor and a pulley 13 on the main shaft [5. One important feature of the invention is that the twister tubes on the one hand and the spindles on the other hand are driven independently from this main driving shaft and this is important in enabling the results secured by the present invention to be effected.

The driving arrangement by means of which the rotation Of the twister tubes and of the spindles is effected to secure the preferred embodiment of the invention as illustrated comprises a series of sprockets and cooperating chains, but it is to be understood that these terms as used herein and in the claims apply to any equivalent means such as pulleys and belts and the illustration is therefore of a diagrammatic nature.

The means here employed for driving the twister tubes from the main or driven shaft l5, in the preferred form illustrated, are as follows: A sprocket I9 on the main frame. and preferably directly on the main shaft I5, is driven by the main shaft and through a chain 2!] drives a sprocket 2| on a shaft 22 on the main frame. This shaft 22 carries a sprocket 23 which drives, by means of a chain 24, a sprocket 25 connected to and driving the cylinder 5. Adiustably others of different diameter to cause any required speed to be imparted from the driven shaft l5 to the cylinder 51 31 co nseqiientlyft "etvglster tubes. "Such "changes,"howeverf' will usually be made by changing the sprockets 23 and 25 and tion of rotation, but change in the speed of rotation of the spindles may readily be efiected as required entirely independently of the twister tubes and the drive thereto.

Having thus described the invention, what is claimed as new, and desired to be secured by setters Patent;fis: I

1."'In a twister tub'type ofspinriif1g frame having a main frame, a driven shaft, means for in Fig. 3, as an illustration, the sprocket 25 has io driving the twister tubes from the driven shaft, a

been replaced by a larger sprocket Z SB and the take-up idler sprocket 26 adjusted to'compensate for the slackenin of the chain.

This enables the same ch v fl tobe em16ea when these sprockets areir c ge' V be noted, however, that the 'd'r'ive' from the main driven shaft [5 through to the tii is-ter tubes' is' entirely independent of any changes made in the drive from this main shaft to the spindles.

The arrangement for driving the spindles is 20 effected H3 dfi v i ilg the s'piildl e cylinder LIZ- diiectlyfrom them-am shaft 15 andalso inc lutlfes 'aserie'sof sprockets and a -'spr'r'mketjchain. in the construction illustrated a sprocket Elisdrivn directly by the main'sha'ft I5 andfpreferablyjs g mcunte directly'orr that shaft. A' sprocket 28 is connected to s eed as to drive the spindle "cylinder 12. *An' idler "shaft '29 with an idler "sprocket 3 0' thereon" are'licated at the opposite side o'fthe sprocket' 28 from the sprocket 2] 30 a chainsl is er'riployedtegetherwithatal p idlersprock'et '3 2 adilist'ablymcunted "on the main name; v I I When the spindle {cylinder 12 is to 'be-iotated,

as indicated by the arrow threon' in Fig? 2'so' as '3 meme the spindlesin'one'direction'the chain 3'! is placed, asillustratedin Fig: 2, aiound'the sprocket 21'; around the idler sprocket 3c; around the take-up idler sprocket 32, and "o'ver tl'ie sprocket 28. 19 rotating in the direction indicated by'the arrow 33 the spindle cylinder I2 will be-driven" in"'-the direction indicated by-the arrow.

When now it isdesi'red-to reverse the-rotation 'of the-spindle cylinder 'l2'the partsare ar- -4 ranged, as shown in' Fig; 3 that is;"the-' idler sprocket-$0 is removed from its shaft "29 and the chain '3! is placed around the'sprockets- 21x28, and the take up idler'sprook'et 32,1With the-result thatwhile themain's'haft *I5is s'till rotatingin the same direction as before; as indicated by the arrow 33,the spindlecylinder '12 now rotates in the opposite direction asindicatedbythearrow thereon in Fig: 3.

Also the sprockets "21' and 2llgmaybe removed Then with the main drivens'h'aft l V Ilia Consequently notonly' the-change-in the direc- 0 :gylindenfor driving the spindles, a sprocket on th'e driven shaft, and a second sprocket for driving the cylinder, the combination of an idler shaft nd a tlifrdspro'cket thereon located at the 0psite'side'of the second sprocket from the first sprocket'atake-cp idler sprocket located below the first-andsecond sprockets and adjustably mounted on the main frame, and a chain acting, 'wheifpl'aced around the first, third and take-up idler sprockets and over the second sprocket, to driv fthe cylinderin one direction and/when placed around the first; second andtake up' idler sprockets, td'drive the'cylinder' in-- the'- opposite direction/whereby the direction of rbtati'onbf the spindles may be reversed without changin'g the =direction of rotation of the tirbes' and' 'the speed of each controlled independently of the other.

2. In a twister tube type bf'rspinningframe having a main frame'y'a driven shaft," a sprocket on the-main frame driven by -the"main*sh'aft, a cylinder for driving the' tubes, a secorld sprocket 'for drivingthe cylinder, y-take up'idler sprocket adjustably mounted-orr'the main frame and-a chain extending around the said three sprockets, a cylinder for' driving the spindles, a fourth sprocket on the driven shaft, and a fifthsp'rocket for drivingthe spindle cylinder,-th'e combination of an idler shaft and a sixth sprocket thereon located at the 'opposite sideof the fifth-sprocket from the fourth sprocket; a take=i1p idler sprocket locatedbelow the fourth and fifth sprockets and adjustably mountedbnthe main frame, and a chain acting, when placed around" the 'fourth, sixthand latter take up idler sprockets-'an'dover the fifth sprocket,'to drive th'e'spindle cylinder in one direction" and when placed-around the fourth, fifth and said* latter-"takeeup idler sprockets,'fto"drive the cylinder inthe opposite direction, whereby-either :or -both the driven and driving sprockets for either cylinder may be changed independently 0f those-for the other cylinder thus toa'djust independentlythe speeds of the tubes and-spindlesand'whereby the direction of rotation-pf the spindle cylinder -'maybe reversed without changing thedirection of rotation of the tube cylinder.

- JOHN A-. KOOIS'IRA.

-' -No-references cited. 

